Emotionally intense and fidgety infants become unusually anxious and aroused when facing new or strange situations. this best illustrates the impact of:

The answer is temperament. This refers to the qualities and parts of identity that we are conceived with. Thus, they are like qualities in that they are both intrinsic (conceived with these things) and persevering. Newborn children who are on edge and anxious have a tendency to be a similar way when they are more older.